Semihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158A GeV/c Pb + Au collisions

Elliptic flow and two-particle azimuthal correlations of charged hadrons and high-$p_{T}$ pions ($p_{T}>$1 GeV/c) have been measured close to midrapidity in 158A GeV/c Pb + Au collisions by the CERES experiment. Elliptic flow ($v_{2}$) rises linearly with $p_{T}$ to a value of about 10% at 2 GeV/...

Descripción completa

Detalles Bibliográficos
Autores principales: Agakichiev, G, Appelshäuser, H, Baur, R, Bielcikova, J, Braun-Munzinger, P, Cherlin, A, Drees, A, Esumi, S I, Filimonov, K, Fraenkel, Zeev, Fuchs, C, Glässel, P, Hering, G, Huovinen, P, Lenkeit, B C, Marin, A, Messer, F, Messer, M, Milosevic, J, Miskowiec, D, Nix, O, Panebratsev, Yu A, Petracek, V, Pfeiffer, A, Rak, J, Ravinovich, I, Razin, S, Rehak, P, Sako, H, Saveljic, N, Schmitz, W, Shimansky, S S, Socol, E, Specht, H J, Stachel, J, Tilsner, H, Tserruya, Itzhak, Voigt, C A, Voloshin, S A, Weber, C, Wessels, J P, Wurm, J P, Yurevich, V
Lenguaje:eng
Publicado: 2004
Materias:
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.92.032301
http://cds.cern.ch/record/802378
_version_ 1780904775055835136
author Agakichiev, G
Appelshäuser, H
Baur, R
Bielcikova, J
Braun-Munzinger, P
Cherlin, A
Drees, A
Esumi, S I
Filimonov, K
Fraenkel, Zeev
Fuchs, C
Glässel, P
Hering, G
Huovinen, P
Lenkeit, B C
Marin, A
Messer, F
Messer, M
Milosevic, J
Miskowiec, D
Nix, O
Panebratsev, Yu A
Petracek, V
Pfeiffer, A
Rak, J
Ravinovich, I
Razin, S
Rehak, P
Sako, H
Saveljic, N
Schmitz, W
Shimansky, S S
Socol, E
Specht, H J
Stachel, J
Tilsner, H
Tserruya, Itzhak
Voigt, C A
Voloshin, S A
Weber, C
Wessels, J P
Wurm, J P
Yurevich, V
author_facet Agakichiev, G
Appelshäuser, H
Baur, R
Bielcikova, J
Braun-Munzinger, P
Cherlin, A
Drees, A
Esumi, S I
Filimonov, K
Fraenkel, Zeev
Fuchs, C
Glässel, P
Hering, G
Huovinen, P
Lenkeit, B C
Marin, A
Messer, F
Messer, M
Milosevic, J
Miskowiec, D
Nix, O
Panebratsev, Yu A
Petracek, V
Pfeiffer, A
Rak, J
Ravinovich, I
Razin, S
Rehak, P
Sako, H
Saveljic, N
Schmitz, W
Shimansky, S S
Socol, E
Specht, H J
Stachel, J
Tilsner, H
Tserruya, Itzhak
Voigt, C A
Voloshin, S A
Weber, C
Wessels, J P
Wurm, J P
Yurevich, V
author_sort Agakichiev, G
collection CERN
description Elliptic flow and two-particle azimuthal correlations of charged hadrons and high-$p_{T}$ pions ($p_{T}>$1 GeV/c) have been measured close to midrapidity in 158A GeV/c Pb + Au collisions by the CERES experiment. Elliptic flow ($v_{2}$) rises linearly with $p_{T}$ to a value of about 10% at 2 GeV/c. Beyond $p_{T} \approx $1.5 Ge V/c, the slope decreases considerably, possibly indicating a saturation of $v_{2}$ at high $p_{T}$. Two-pion azimuthal anisotropies for $p_{T} >$1.2 GeV/c exceed the elliptic flow values by about 60% in midcentral collisions. These nonflow contributions are attributed to nearside and back-to-back jetlike correlations, the latter exhibiting centrality dependent broadening.
id cern-802378
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
record_format invenio
spelling cern-8023782019-09-30T06:29:59Zdoi:10.1103/PhysRevLett.92.032301http://cds.cern.ch/record/802378engAgakichiev, GAppelshäuser, HBaur, RBielcikova, JBraun-Munzinger, PCherlin, ADrees, AEsumi, S IFilimonov, KFraenkel, ZeevFuchs, CGlässel, PHering, GHuovinen, PLenkeit, B CMarin, AMesser, FMesser, MMilosevic, JMiskowiec, DNix, OPanebratsev, Yu APetracek, VPfeiffer, ARak, JRavinovich, IRazin, SRehak, PSako, HSaveljic, NSchmitz, WShimansky, S SSocol, ESpecht, H JStachel, JTilsner, HTserruya, ItzhakVoigt, C AVoloshin, S AWeber, CWessels, J PWurm, J PYurevich, VSemihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158A GeV/c Pb + Au collisionsNuclear PhysicsElliptic flow and two-particle azimuthal correlations of charged hadrons and high-$p_{T}$ pions ($p_{T}>$1 GeV/c) have been measured close to midrapidity in 158A GeV/c Pb + Au collisions by the CERES experiment. Elliptic flow ($v_{2}$) rises linearly with $p_{T}$ to a value of about 10% at 2 GeV/c. Beyond $p_{T} \approx $1.5 Ge V/c, the slope decreases considerably, possibly indicating a saturation of $v_{2}$ at high $p_{T}$. Two-pion azimuthal anisotropies for $p_{T} >$1.2 GeV/c exceed the elliptic flow values by about 60% in midcentral collisions. These nonflow contributions are attributed to nearside and back-to-back jetlike correlations, the latter exhibiting centrality dependent broadening.oai:cds.cern.ch:8023782004
spellingShingle Nuclear Physics
Agakichiev, G
Appelshäuser, H
Baur, R
Bielcikova, J
Braun-Munzinger, P
Cherlin, A
Drees, A
Esumi, S I
Filimonov, K
Fraenkel, Zeev
Fuchs, C
Glässel, P
Hering, G
Huovinen, P
Lenkeit, B C
Marin, A
Messer, F
Messer, M
Milosevic, J
Miskowiec, D
Nix, O
Panebratsev, Yu A
Petracek, V
Pfeiffer, A
Rak, J
Ravinovich, I
Razin, S
Rehak, P
Sako, H
Saveljic, N
Schmitz, W
Shimansky, S S
Socol, E
Specht, H J
Stachel, J
Tilsner, H
Tserruya, Itzhak
Voigt, C A
Voloshin, S A
Weber, C
Wessels, J P
Wurm, J P
Yurevich, V
Semihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158A GeV/c Pb + Au collisions
title Semihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158A GeV/c Pb + Au collisions
title_full Semihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158A GeV/c Pb + Au collisions
title_fullStr Semihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158A GeV/c Pb + Au collisions
title_full_unstemmed Semihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158A GeV/c Pb + Au collisions
title_short Semihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158A GeV/c Pb + Au collisions
title_sort semihard scattering unraveled from collective dynamics by two-pion azimuthal correlations in 158a gev/c pb + au collisions
topic Nuclear Physics
url https://dx.doi.org/10.1103/PhysRevLett.92.032301
http://cds.cern.ch/record/802378
work_keys_str_mv AT agakichievg semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT appelshauserh semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT baurr semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT bielcikovaj semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT braunmunzingerp semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT cherlina semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT dreesa semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT esumisi semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT filimonovk semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT fraenkelzeev semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT fuchsc semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT glasselp semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT heringg semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT huovinenp semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT lenkeitbc semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT marina semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT messerf semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT messerm semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT milosevicj semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT miskowiecd semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT nixo semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT panebratsevyua semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT petracekv semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT pfeiffera semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT rakj semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT ravinovichi semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT razins semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT rehakp semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT sakoh semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT saveljicn semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT schmitzw semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT shimanskyss semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT socole semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT spechthj semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT stachelj semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT tilsnerh semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT tserruyaitzhak semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT voigtca semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT voloshinsa semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT weberc semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT wesselsjp semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT wurmjp semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions
AT yurevichv semihardscatteringunraveledfromcollectivedynamicsbytwopionazimuthalcorrelationsin158agevcpbaucollisions

Ejemplares similares